Pierce County, WA

ZIP 98498

In ZIP 98498, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Western State Hospital has 1 contaminant at or over an EPA legal limit; 5 contaminants are above health goals, led by pfos at 16× California’s Public Health Goal.
• Nearest Superfund site: Fort Lewis (landfill No. 5), 1.5 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Puget Sound Coatings (44%), mostly diisocyanates.
• Fine particles (PM2.5) average 6.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 18,075 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 98498

• Superfund sites nearbyF
• Factories and industrial sitesA to B
• Oil and gas wellsA
• Parks and nature nearbyB to C
• Air qualityA
• Drinking water qualityC to F
• Pesticide useA to C
• Neighborhood health statusA to D
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsA

Based on 9 census tracts · compiled October 25, 2026 · how each grade works and its sources

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